We're 50 days away from election day. The election comes down to a handful of key battlegrounds. From the romney campaign, just where they stand in those key states. Abc's david kerley joins us with... See More
We're 50 days away from election day. The election comes down to a handful of key battlegrounds. From the romney campaign, just where they stand in those key states. Abc's david kerley joins us with more from washington. Reporter: Good morning, bianna. This is a game of hop scotch as candidates jump one state to Romney is now highlighting a stumble. Romney went after the democrats' awkwardly inserting god into their platform. I will not take god out of our platform. I will not take god out of my heart. Reporter: The president wants to remove "in god we trust" from coins? No said his campaign. In florida, it was the florida, it was the president mocking those questions about his birth certificate. You were born in hawaii. On kauai. You have a birth er certificate? Say, yes, sir. Reporter: The romney campaign said that it's not leading in any of the states, at best, a tie in some. Before the convention, the president was up 6 in florida. But numbers changed and that lead in wisconsin may have disappeared because this morning. Here in wisconsin, we're not better off under obama. Because wisconsin added to other battleground states. Which is why you'll hear statements like this when the candidates just have to remember to change the name of battleground state. We will florida and we will this election. Reporter: Ohio is at this time least battleground stop for the president. Romney is off the trial today. David kerley, thank you. Let's bring in the host of "this week" with george stephanopoulos. The romney people are conceding that the battle ground state math is tough for them. They're trying to flip what has been a solid democratic state, the state of wisconsin the home of romney's running mate, paul ryan, they'll have to do that in order to open up their possibilities right now. If you look at that map that kerlr david kerley put in his piece, he has a lead in those battleground states. You got paul ryan on the show this morning, do you think he can help put the campaign over the top in wisconsin. He can make a difference. The minute he was chosen he increased mitt romney's chances in wisconsin. He's excited conservatives. Made mitt romney feel better on the stump. He's provided a big targets for democrats. They go after the ryan budget. 570% lightning rod. Lot of people were surprised by this joke that president obama made. A birther joke, now the president makes a birther joke. Was it a wise move. When mitt r078ney does. When barack obama does it, they're playing to their base. He's reminding all of his voters, watch out for these other guys, they don't think i was born here. That's the game here, excite the base on both sides. Then target the tiny sliver of undecided votes. George stephanopoulos, we appreciate it. George stephanopoulos has a big show this morning, including the interview we mentioned with paul ryan. Plus the powerhouse rou roundtable. It's "this week" with george stephanopoulos. Thank you, george.
This transcript has been automatically generated and may not be 100% accurate.